<template>
<!--  父级页面-->
  <div style="display:flex">
<!--    左侧-->
    <div :style="{width:(isCollapse ? '64px':'208px')}">
<!--    左侧菜单栏-->
      <el-menu
          background-color="#3C82F5"
          style="width:100%;height:100%;min-height: 100vh"
          text-color="#fff"
          active-text-color="#ff0"
          :collapse="isCollapse"
          :collapse-transition="false"
          unique-opened router
          @select="selectMenu"
      >
<!--        左侧菜单顶部条-->
        <el-row :gutter="10" style="padding-top:10px">
          <el-col :span="2">
          </el-col>
          <el-col :span="7" style="padding-left:7px">
            <el-avatar src="/imgs/admin/logo.png" style="width: 35px;height: 35px">
            </el-avatar>
          </el-col>
          <el-col :span="isCollapse ? 0 : 13">
            <router-link to="/" style="text-decoration:none;color:#fff;font-weight:bold;position: relative;top: 8px;left:2px">智慧车辆</router-link>
          </el-col>
        </el-row>
<!--         左侧菜单选项-->
        <el-sub-menu index="1">
          <template #title>
              <el-icon style="font-size: 21px;"><User/></el-icon> <span>用户管理</span>
          </template>
          <el-menu-item index="/user">用户列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="2">
          <template #title>
            <el-icon style="font-size: 21px;"><Van/></el-icon> <span>车辆管理</span>
          </template>
          <el-menu-item index="/vehicle">基本信息</el-menu-item>
          <el-menu-item index="/repair">车辆维修</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="3">
          <template #title>
            <el-icon style="font-size: 21px;"><Place/></el-icon> <span>调度管理</span>
          </template>
          <el-menu-item index="/application">申请列表</el-menu-item>
          <el-menu-item index="/audit">调度审核</el-menu-item>
          <el-menu-item index="/distribute">车辆分配</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="4">
          <template #title>
            <el-icon style="font-size: 21px;"><Location/></el-icon> <span>电子围栏</span>
          </template>
          <el-menu-item index="/geofence">围栏管理</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="5">
          <template #title>
            <el-icon style="font-size: 21px;"><MessageBox/></el-icon> <span>数据字典</span>
          </template>
          <el-menu-item index="/dict">字典管理</el-menu-item>
        </el-sub-menu>
      </el-menu>
    </div>
<!--    右侧-->
    <div :style="{width:(isCollapse ? 'calc(100% - 64px)':'calc(100% - 208px)')}">
<!--      右侧顶部块-->
      <el-header style="background-color: #fff;padding-top: 22px;height: 10vh">
        <!--        折叠图标+退出登录-->
        <el-row :gutter="10">
          <el-col :span="18">
            <el-icon style="font-size: 20px;position: relative;top: 3px" @click="changeCollapse()"><Expand/></el-icon>
          </el-col>

          <el-col :span="6" style="position: relative">
            <el-dropdown trigger="click" style="position:absolute;right: 20px">
              <span style="font-size: 19px;font-weight: bold;">
                {{user.username}}
                <el-icon >
                  <arrow-down />
                </el-icon>
              </span>
              <template #dropdown>
                <el-dropdown-menu>
                  <el-dropdown-item @click="logout()">退出登录</el-dropdown-item>
                  <el-dropdown-item>Action 2</el-dropdown-item>
                </el-dropdown-menu>
              </template>
            </el-dropdown>
          </el-col >
        </el-row>
        <!--导航栏-->
        <el-breadcrumb separator="/" style="position: relative;top: 20px">
          <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
          <el-breadcrumb-item v-for="item in breadCrumb">{{item}}</el-breadcrumb-item>
        </el-breadcrumb>
      </el-header>
<!--右侧下半部分-->
      <el-main style="padding: 0;min-height: 90vh;overflow-y: auto;">
        <router-view/>
      </el-main>
    </div>
  </div>
</template>

<script setup>
import {ref} from "vue";
import router from "@/router";

//控制左侧菜单是否折叠
const isCollapse=ref(false);
//定义接收后端显示给前端的对象
const user=ref(getUser());
//导航栏所有的数据
let map={
  '/user':['用户管理','用户列表'],
  '/vehicle':['车辆管理','基本信息'],
  '/application': ['调度管理','申请列表'],
  '/audit': ['调度管理','调度审核'],
  '/distribute':['调度管理','车辆分配'],
  '/geofence':['电子围栏','围栏管理'],
  '/dict':['数据字典','字典管理'],
  '/repair':['车辆管理','车辆维修']
};
//导航栏具体遍历
const breadCrumb=ref(JSON.parse(localStorage.getItem('breadCrumb'))||['用户管理','用户列表']);


//修改折叠状态
const changeCollapse=()=>{
  isCollapse.value=!isCollapse.value
}
//退出登录
const logout=()=>{
  if (confirm('确定退出吗')){
    localStorage.removeItem('user');
    localStorage.removeItem('breadCrumb');
    router.push('/login');
    user.value='';
  }
}
//选中菜单项触发
const selectMenu=(index)=>{
  breadCrumb.value=map[index];
  localStorage.setItem('breadCrumb',JSON.stringify(breadCrumb.value));
};


</script>